Vocalizations of the Monk Parakeet

Vocalizations and associated behaviour of the Monk Parakeet Myiopsitta monachus were recorded in the field during the breeding (summer) and non-breeding (winter) seasons. Eleven types of vocalizations, nine in adults and two in nestlings and juveniles, are described; and their functions are discussed in terms of context. Experiments with playback of the recorded vocalizations showed that each one of the calls acted as discrete calls eliciting specific responses from other birds. Most calls were uttered during general social interactions within the colony. This finding suggests that vocal communication in this parrot is very important in maintaining coordination and cohesion among members of a colony that are in constant, close association.